# duo-labs/webauthn

WebAuthn (FIDO2) server library written in Go

Repository: https://github.com/duo-labs/webauthn
Canonical: https://ross.abutalabs.com/products/duo-labs-webauthn
Homepage: https://webauthn.io/
Language: Go
License: BSD-3-Clause
License Family: permissive
Topics: webauthn, webauthn-library, authentication, security, fido2, u2f
Archived: true
Last push: 2022-12-05T16:42:57+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3233, "days_push": 1367, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1030, forks 158 (observed 2026-08-28T04:03:17.814621+00:00)

## What it is
A Go server library implementing the WebAuthn (FIDO2) specification for adding passwordless authentication to web applications. It handles registration and login ceremonies with authenticators such as security keys and platform biometrics.

## Use cases
- add webauthn passwordless login to a go web server
- implement fido2 security key authentication in go
- support passkey registration and login on my backend
- replace password authentication with hardware authenticators
- verify webauthn attestation and assertion responses in go
- build a u2f-compatible two-factor flow

## When to choose
- you are maintaining a legacy Go project already built on this library
- you need a minimal, well-documented reference implementation of WebAuthn server logic in Go

## When to avoid
- starting a new Go project - use the actively maintained go-webauthn/webauthn fork instead
- you need recent WebAuthn spec updates, bug fixes, or new authenticator support
- you need a client-side or non-Go implementation

## Facets
- artifact type: library
- maturity: abandoned
- function: auth, security, http-server
- domain: security, web-development, backend, developer-tools
- platform: go, cross-platform
- tags: webauthn, fido2, passkeys, passwordless, u2f, deprecated, web-server

## Member repositories
- duo-labs/webauthn (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:17.814621+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:07:33.200270+00:00, confidence not recorded.
  - readme: https://github.com/duo-labs/webauthn (fetched 2026-08-28T04:03:17.814621+00:00, sha ac5e66037cb5)
  - homepage: https://webauthn.io/ (fetched 2026-08-29T13:07:01.171500+00:00, sha ca8a4f19ae51)
- Data as of 2026-08-30T08:39:29.467469+00:00.